[turtleb]

After doing some part searches, I have noticed that the TFI for an 86 5.0 is not transmission specific like TFI's on 87+ 5.0's. Any idea why?

The TFI on my 86 distributor has E3EF-12A297-A2A. I have found information stating that this part is for automatic transmissions and E3EF-12A297-A1A is for cars with manual transmissions. My 86 GT is a 5sp, speed density car and from what I have read, since it is an 86 it could use either TFI's.

I suppose the question to be asked is, if 87+ cars have a transmission specific TFI, and the part numbers above correspond correctly, would the A2A TFI only work correctly in an automatic car (87+)? And same token, would the TFI have to be changed to a A1A equivalent TFI for the distributor to placed in a 5spd, mass air car?

Make any sense or completely way off?

[turtleb]

After doing some part # research, I have noticed that the TFI for an 86 5.0 is not transmission specific like TFI's on 87+ 5.0's. Any idea why?

The TFI on my 86 distributor has E3EF-12A297-A2A. I have found information stating that this part is for automatic transmissions and E3EF-12A297-A1A is for cars with manual transmissions. My 86 GT is a 5sp, speed density car and from what I have read, since it is an 86 it could use either TFI's.

I suppose the question to be asked is, if 87+ cars have a transmission specific TFI, and the part numbers above correspond correctly, would the A2A TFI only work correctly in an automatic car (87+)? And same token, would the TFI have to be changed to a A1A equivalent TFI for the distributor to placed in a 5spd, mass air car?

Or simply, why are replacement modules transmission specific, but an MSD Distributor is not, but an Accel Distributor is?

Make any sense or completely way off?

[StangLX93]

the TFI module are not totally transmission specfic in the sense that there were not created equal, but the manual transmission has a hall effect circut to allow advancing for push starts, i believe as time went on no matter if you had auto or manual, the modules all contained the hall effect circuit, but for earlier one i would stick to the correcr part number for problem free installation

[Stangmansteve]

what he said

[turtleb]

Ok, so it's basically just a push start control difference. I wanted to make sure the communications between the distributor and computer were correct since the distributor and TFI is from an 86 and the computer is a 9AL from a 1990.

Thanks for the help.